StudentJanejobsasanassistantfortheanimalresearcherPhillipinalonesomeoldhouse.Theylivealoneexceptforthechimpanzeesandbutlerlinka45yearsoldveryintelligentorangutan.Phillipwantstoputlinktodeath.Howeverbeforehecandothishe'svanishedtracelesslyonemorning.linkstartsbehavingmoreandmoreaggressiveandprohibitsJanefromusingthephoneorreachingthenextvillage.Whenshepunisheshimbylockinghimout,hebecomesviolent.